Whether a region's label is only its sets joined by ∩, as the charting
library labels a region the author did not name.
The comparison ignores order and the spacing around ∩: Highcharts sorts a
relation's sets in place while laying the diagram out, and an author may
write A ∩ B for the region the library calls B∩A. A label that only
mentions the sets, such as A and B, is the author's own and is not
matched.
Whether a region's label is only its sets joined by
∩, as the charting library labels a region the author did not name.The comparison ignores order and the spacing around
∩: Highcharts sorts a relation's sets in place while laying the diagram out, and an author may writeA ∩ Bfor the region the library callsB∩A. A label that only mentions the sets, such asA and B, is the author's own and is not matched.